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Finding the Fourth Proportional to 520,093.07, 780,083.70 and 352,687.94

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Solution

The fourth proportional to 520,093.07, 780,083.70 and 352,687.94 is: 528,994.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,093.07 : 780,083.70 = 352,687.94 : x
  2. Step 2: Convert to fraction form
    520,093.07/780,083.70 = 352,687.94/x
  3. Step 3: Cross multiply
    520,093.07x = 780,083.70 × 352,687.94
  4. Step 4: Simplify right side
    520,093.07x = 275,126,109,280.16
  5. Step 5: Solve for x
    x = 275,126,109,280.16/520,093.07
  6. Step 6: Final answer
    x = 528,994.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.